13e519524SHoward Hinnant// -*- C++ -*-
2eb8650a7SLouis Dionne//===----------------------------------------------------------------------===//
33e519524SHoward Hinnant//
457b08b09SChandler Carruth// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
557b08b09SChandler Carruth// See https://llvm.org/LICENSE.txt for license information.
657b08b09SChandler Carruth// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
73e519524SHoward Hinnant//
83e519524SHoward Hinnant//===----------------------------------------------------------------------===//
93e519524SHoward Hinnant
103e519524SHoward Hinnant#ifndef _LIBCPP_ALGORITHM
113e519524SHoward Hinnant#define _LIBCPP_ALGORITHM
123e519524SHoward Hinnant
133e519524SHoward Hinnant/*
143e519524SHoward Hinnant    algorithm synopsis
153e519524SHoward Hinnant
163e519524SHoward Hinnant#include <initializer_list>
173e519524SHoward Hinnant
183e519524SHoward Hinnantnamespace std
193e519524SHoward Hinnant{
203e519524SHoward Hinnant
21d3729bb3SNikolas Klausernamespace ranges {
22d3729bb3SNikolas Klauser  template <class I1, class I2>
23d3729bb3SNikolas Klauser    struct in_in_result;     // since C++20
24f3514af4SNikolas Klauser
25f3514af4SNikolas Klauser  template <class I1, class I2, class O>
26f3514af4SNikolas Klauser    struct in_in_out_result; // since C++20
27610979b3SNikolas Klauser
28610979b3SNikolas Klauser  template <class I, class O1, class O2>
29610979b3SNikolas Klauser    struct in_out_out_result; // since C++20
30d3729bb3SNikolas Klauser}
31d3729bb3SNikolas Klauser
323e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
33706ffef7SMarshall Clow    constexpr bool     // constexpr in C++20
343e519524SHoward Hinnant    all_of(InputIterator first, InputIterator last, Predicate pred);
353e519524SHoward Hinnant
363e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
37706ffef7SMarshall Clow    constexpr bool     // constexpr in C++20
383e519524SHoward Hinnant    any_of(InputIterator first, InputIterator last, Predicate pred);
393e519524SHoward Hinnant
403e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
41706ffef7SMarshall Clow    constexpr bool     // constexpr in C++20
423e519524SHoward Hinnant    none_of(InputIterator first, InputIterator last, Predicate pred);
433e519524SHoward Hinnant
443e519524SHoward Hinnanttemplate <class InputIterator, class Function>
451b9a4ffdSMarshall Clow    constexpr Function          // constexpr in C++20
463e519524SHoward Hinnant    for_each(InputIterator first, InputIterator last, Function f);
473e519524SHoward Hinnant
48d5c65ffaSMarshall Clowtemplate<class InputIterator, class Size, class Function>
491b9a4ffdSMarshall Clow    constexpr InputIterator     // constexpr in C++20
501b9a4ffdSMarshall Clow    for_each_n(InputIterator first, Size n, Function f); // C++17
51d5c65ffaSMarshall Clow
523e519524SHoward Hinnanttemplate <class InputIterator, class T>
5349c7643cSMarshall Clow    constexpr InputIterator     // constexpr in C++20
543e519524SHoward Hinnant    find(InputIterator first, InputIterator last, const T& value);
553e519524SHoward Hinnant
563e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
5749c7643cSMarshall Clow    constexpr InputIterator     // constexpr in C++20
583e519524SHoward Hinnant    find_if(InputIterator first, InputIterator last, Predicate pred);
593e519524SHoward Hinnant
603e519524SHoward Hinnanttemplate<class InputIterator, class Predicate>
61b8bc4e15SArthur O'Dwyer    constexpr InputIterator     // constexpr in C++20
623e519524SHoward Hinnant    find_if_not(InputIterator first, InputIterator last, Predicate pred);
633e519524SHoward Hinnant
643e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2>
65b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator1  // constexpr in C++20
663e519524SHoward Hinnant    find_end(ForwardIterator1 first1, ForwardIterator1 last1,
673e519524SHoward Hinnant             ForwardIterator2 first2, ForwardIterator2 last2);
683e519524SHoward Hinnant
693e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
70b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator1  // constexpr in C++20
713e519524SHoward Hinnant    find_end(ForwardIterator1 first1, ForwardIterator1 last1,
723e519524SHoward Hinnant             ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
733e519524SHoward Hinnant
743e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2>
758694428eSMarshall Clow    constexpr ForwardIterator1  // constexpr in C++20
763e519524SHoward Hinnant    find_first_of(ForwardIterator1 first1, ForwardIterator1 last1,
773e519524SHoward Hinnant                  ForwardIterator2 first2, ForwardIterator2 last2);
783e519524SHoward Hinnant
793e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
808694428eSMarshall Clow    constexpr ForwardIterator1  // constexpr in C++20
813e519524SHoward Hinnant    find_first_of(ForwardIterator1 first1, ForwardIterator1 last1,
823e519524SHoward Hinnant                  ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
833e519524SHoward Hinnant
843e519524SHoward Hinnanttemplate <class ForwardIterator>
858694428eSMarshall Clow    constexpr ForwardIterator   // constexpr in C++20
863e519524SHoward Hinnant    adjacent_find(ForwardIterator first, ForwardIterator last);
873e519524SHoward Hinnant
883e519524SHoward Hinnanttemplate <class ForwardIterator, class BinaryPredicate>
898694428eSMarshall Clow    constexpr ForwardIterator   // constexpr in C++20
903e519524SHoward Hinnant    adjacent_find(ForwardIterator first, ForwardIterator last, BinaryPredicate pred);
913e519524SHoward Hinnant
923e519524SHoward Hinnanttemplate <class InputIterator, class T>
93056f15e3SMarshall Clow    constexpr typename iterator_traits<InputIterator>::difference_type  // constexpr in C++20
943e519524SHoward Hinnant    count(InputIterator first, InputIterator last, const T& value);
953e519524SHoward Hinnant
963e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
97056f15e3SMarshall Clow    constexpr typename iterator_traits<InputIterator>::difference_type // constexpr in C++20
983e519524SHoward Hinnant    count_if(InputIterator first, InputIterator last, Predicate pred);
993e519524SHoward Hinnant
1003e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2>
1016538e28dSMarshall Clow    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
1023e519524SHoward Hinnant    mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2);
1033e519524SHoward Hinnant
1040b0bbd2fSMarshall Clowtemplate <class InputIterator1, class InputIterator2>
1056538e28dSMarshall Clow    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
1060b0bbd2fSMarshall Clow    mismatch(InputIterator1 first1, InputIterator1 last1,
1070b0bbd2fSMarshall Clow             InputIterator2 first2, InputIterator2 last2); // **C++14**
1080b0bbd2fSMarshall Clow
1093e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
1106538e28dSMarshall Clow    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
1113e519524SHoward Hinnant    mismatch(InputIterator1 first1, InputIterator1 last1,
1123e519524SHoward Hinnant             InputIterator2 first2, BinaryPredicate pred);
1133e519524SHoward Hinnant
1140b0bbd2fSMarshall Clowtemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
1156538e28dSMarshall Clow    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
1160b0bbd2fSMarshall Clow    mismatch(InputIterator1 first1, InputIterator1 last1,
1170b0bbd2fSMarshall Clow             InputIterator2 first2, InputIterator2 last2,
1180b0bbd2fSMarshall Clow             BinaryPredicate pred); // **C++14**
1190b0bbd2fSMarshall Clow
1203e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2>
1216538e28dSMarshall Clow    constexpr bool      // constexpr in C++20
1223e519524SHoward Hinnant    equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2);
1233e519524SHoward Hinnant
1240b0bbd2fSMarshall Clowtemplate <class InputIterator1, class InputIterator2>
1256538e28dSMarshall Clow    constexpr bool      // constexpr in C++20
1260b0bbd2fSMarshall Clow    equal(InputIterator1 first1, InputIterator1 last1,
1270b0bbd2fSMarshall Clow          InputIterator2 first2, InputIterator2 last2); // **C++14**
1280b0bbd2fSMarshall Clow
1293e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
1306538e28dSMarshall Clow    constexpr bool      // constexpr in C++20
1313e519524SHoward Hinnant    equal(InputIterator1 first1, InputIterator1 last1,
1323e519524SHoward Hinnant          InputIterator2 first2, BinaryPredicate pred);
1333e519524SHoward Hinnant
1340b0bbd2fSMarshall Clowtemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
1356538e28dSMarshall Clow    constexpr bool      // constexpr in C++20
1360b0bbd2fSMarshall Clow    equal(InputIterator1 first1, InputIterator1 last1,
1370b0bbd2fSMarshall Clow          InputIterator2 first2, InputIterator2 last2,
1380b0bbd2fSMarshall Clow          BinaryPredicate pred); // **C++14**
1390b0bbd2fSMarshall Clow
1403e519524SHoward Hinnanttemplate<class ForwardIterator1, class ForwardIterator2>
14149c7643cSMarshall Clow    constexpr bool      // constexpr in C++20
1423e519524SHoward Hinnant    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
1433e519524SHoward Hinnant                   ForwardIterator2 first2);
1443e519524SHoward Hinnant
1450b0bbd2fSMarshall Clowtemplate<class ForwardIterator1, class ForwardIterator2>
14649c7643cSMarshall Clow    constexpr bool      // constexpr in C++20
1470b0bbd2fSMarshall Clow    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
1480b0bbd2fSMarshall Clow                   ForwardIterator2 first2, ForwardIterator2 last2); // **C++14**
1490b0bbd2fSMarshall Clow
1503e519524SHoward Hinnanttemplate<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
15149c7643cSMarshall Clow    constexpr bool      // constexpr in C++20
1523e519524SHoward Hinnant    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
1533e519524SHoward Hinnant                   ForwardIterator2 first2, BinaryPredicate pred);
1543e519524SHoward Hinnant
1550b0bbd2fSMarshall Clowtemplate<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
15649c7643cSMarshall Clow    constexpr bool      // constexpr in C++20
1570b0bbd2fSMarshall Clow    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
1580b0bbd2fSMarshall Clow                   ForwardIterator2 first2, ForwardIterator2 last2,
1590b0bbd2fSMarshall Clow                   BinaryPredicate pred);  // **C++14**
1600b0bbd2fSMarshall Clow
1613e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2>
16212f0a779SMarshall Clow    constexpr ForwardIterator1      // constexpr in C++20
1633e519524SHoward Hinnant    search(ForwardIterator1 first1, ForwardIterator1 last1,
1643e519524SHoward Hinnant           ForwardIterator2 first2, ForwardIterator2 last2);
1653e519524SHoward Hinnant
1663e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
16712f0a779SMarshall Clow    constexpr ForwardIterator1      // constexpr in C++20
1683e519524SHoward Hinnant    search(ForwardIterator1 first1, ForwardIterator1 last1,
1693e519524SHoward Hinnant           ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
1703e519524SHoward Hinnant
1713e519524SHoward Hinnanttemplate <class ForwardIterator, class Size, class T>
17212f0a779SMarshall Clow    constexpr ForwardIterator       // constexpr in C++20
1733e519524SHoward Hinnant    search_n(ForwardIterator first, ForwardIterator last, Size count, const T& value);
1743e519524SHoward Hinnant
1753e519524SHoward Hinnanttemplate <class ForwardIterator, class Size, class T, class BinaryPredicate>
17612f0a779SMarshall Clow    constexpr ForwardIterator       // constexpr in C++20
1773e519524SHoward Hinnant    search_n(ForwardIterator first, ForwardIterator last,
1783e519524SHoward Hinnant             Size count, const T& value, BinaryPredicate pred);
1793e519524SHoward Hinnant
1803e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator>
18113c90a57SLouis Dionne    constexpr OutputIterator      // constexpr in C++20
1823e519524SHoward Hinnant    copy(InputIterator first, InputIterator last, OutputIterator result);
1833e519524SHoward Hinnant
1843e519524SHoward Hinnanttemplate<class InputIterator, class OutputIterator, class Predicate>
18513c90a57SLouis Dionne    constexpr OutputIterator      // constexpr in C++20
1863e519524SHoward Hinnant    copy_if(InputIterator first, InputIterator last,
1873e519524SHoward Hinnant            OutputIterator result, Predicate pred);
1883e519524SHoward Hinnant
1893e519524SHoward Hinnanttemplate<class InputIterator, class Size, class OutputIterator>
19013c90a57SLouis Dionne    constexpr OutputIterator      // constexpr in C++20
1913e519524SHoward Hinnant    copy_n(InputIterator first, Size n, OutputIterator result);
1923e519524SHoward Hinnant
1933e519524SHoward Hinnanttemplate <class BidirectionalIterator1, class BidirectionalIterator2>
19413c90a57SLouis Dionne    constexpr BidirectionalIterator2      // constexpr in C++20
1953e519524SHoward Hinnant    copy_backward(BidirectionalIterator1 first, BidirectionalIterator1 last,
1963e519524SHoward Hinnant                  BidirectionalIterator2 result);
1973e519524SHoward Hinnant
1983e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2>
199b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator2    // constexpr in C++20
2003e519524SHoward Hinnant    swap_ranges(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2);
2013e519524SHoward Hinnant
2023e519524SHoward Hinnanttemplate <class ForwardIterator1, class ForwardIterator2>
203b8bc4e15SArthur O'Dwyer    constexpr void                // constexpr in C++20
2043e519524SHoward Hinnant    iter_swap(ForwardIterator1 a, ForwardIterator2 b);
2053e519524SHoward Hinnant
2063e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class UnaryOperation>
20799894b61SMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2083e519524SHoward Hinnant    transform(InputIterator first, InputIterator last, OutputIterator result, UnaryOperation op);
2093e519524SHoward Hinnant
2103e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class BinaryOperation>
21199894b61SMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2123e519524SHoward Hinnant    transform(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
2133e519524SHoward Hinnant              OutputIterator result, BinaryOperation binary_op);
2143e519524SHoward Hinnant
2153e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
21612c7423fSMarshall Clow    constexpr void      // constexpr in C++20
2173e519524SHoward Hinnant    replace(ForwardIterator first, ForwardIterator last, const T& old_value, const T& new_value);
2183e519524SHoward Hinnant
2193e519524SHoward Hinnanttemplate <class ForwardIterator, class Predicate, class T>
22012c7423fSMarshall Clow    constexpr void      // constexpr in C++20
2213e519524SHoward Hinnant    replace_if(ForwardIterator first, ForwardIterator last, Predicate pred, const T& new_value);
2223e519524SHoward Hinnant
2233e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class T>
22412c7423fSMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2253e519524SHoward Hinnant    replace_copy(InputIterator first, InputIterator last, OutputIterator result,
2263e519524SHoward Hinnant                 const T& old_value, const T& new_value);
2273e519524SHoward Hinnant
2283e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class Predicate, class T>
22912c7423fSMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2303e519524SHoward Hinnant    replace_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred, const T& new_value);
2313e519524SHoward Hinnant
2323e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
2334bfb9313SMarshall Clow    constexpr void      // constexpr in C++20
2343e519524SHoward Hinnant    fill(ForwardIterator first, ForwardIterator last, const T& value);
2353e519524SHoward Hinnant
2363e519524SHoward Hinnanttemplate <class OutputIterator, class Size, class T>
2374bfb9313SMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2383e519524SHoward Hinnant    fill_n(OutputIterator first, Size n, const T& value);
2393e519524SHoward Hinnant
2403e519524SHoward Hinnanttemplate <class ForwardIterator, class Generator>
2414bfb9313SMarshall Clow    constexpr void      // constexpr in C++20
2423e519524SHoward Hinnant    generate(ForwardIterator first, ForwardIterator last, Generator gen);
2433e519524SHoward Hinnant
2443e519524SHoward Hinnanttemplate <class OutputIterator, class Size, class Generator>
2454bfb9313SMarshall Clow    constexpr OutputIterator      // constexpr in C++20
2463e519524SHoward Hinnant    generate_n(OutputIterator first, Size n, Generator gen);
2473e519524SHoward Hinnant
2483e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
249e8ea8296SMarshall Clow    constexpr ForwardIterator     // constexpr in C++20
2503e519524SHoward Hinnant    remove(ForwardIterator first, ForwardIterator last, const T& value);
2513e519524SHoward Hinnant
2523e519524SHoward Hinnanttemplate <class ForwardIterator, class Predicate>
253e8ea8296SMarshall Clow    constexpr ForwardIterator     // constexpr in C++20
2543e519524SHoward Hinnant    remove_if(ForwardIterator first, ForwardIterator last, Predicate pred);
2553e519524SHoward Hinnant
2563e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class T>
257e8ea8296SMarshall Clow    constexpr OutputIterator     // constexpr in C++20
2583e519524SHoward Hinnant    remove_copy(InputIterator first, InputIterator last, OutputIterator result, const T& value);
2593e519524SHoward Hinnant
2603e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class Predicate>
261e8ea8296SMarshall Clow    constexpr OutputIterator     // constexpr in C++20
2623e519524SHoward Hinnant    remove_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred);
2633e519524SHoward Hinnant
2643e519524SHoward Hinnanttemplate <class ForwardIterator>
265b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator    // constexpr in C++20
2663e519524SHoward Hinnant    unique(ForwardIterator first, ForwardIterator last);
2673e519524SHoward Hinnant
2683e519524SHoward Hinnanttemplate <class ForwardIterator, class BinaryPredicate>
269b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator    // constexpr in C++20
2703e519524SHoward Hinnant    unique(ForwardIterator first, ForwardIterator last, BinaryPredicate pred);
2713e519524SHoward Hinnant
2723e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator>
273b8bc4e15SArthur O'Dwyer    constexpr OutputIterator     // constexpr in C++20
2743e519524SHoward Hinnant    unique_copy(InputIterator first, InputIterator last, OutputIterator result);
2753e519524SHoward Hinnant
2763e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator, class BinaryPredicate>
277b8bc4e15SArthur O'Dwyer    constexpr OutputIterator     // constexpr in C++20
2783e519524SHoward Hinnant    unique_copy(InputIterator first, InputIterator last, OutputIterator result, BinaryPredicate pred);
2793e519524SHoward Hinnant
2803e519524SHoward Hinnanttemplate <class BidirectionalIterator>
281f851db3dSArthur O'Dwyer    constexpr void               // constexpr in C++20
2823e519524SHoward Hinnant    reverse(BidirectionalIterator first, BidirectionalIterator last);
2833e519524SHoward Hinnant
2843e519524SHoward Hinnanttemplate <class BidirectionalIterator, class OutputIterator>
285e8ea8296SMarshall Clow    constexpr OutputIterator       // constexpr in C++20
2863e519524SHoward Hinnant    reverse_copy(BidirectionalIterator first, BidirectionalIterator last, OutputIterator result);
2873e519524SHoward Hinnant
2883e519524SHoward Hinnanttemplate <class ForwardIterator>
289b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator      // constexpr in C++20
2903e519524SHoward Hinnant    rotate(ForwardIterator first, ForwardIterator middle, ForwardIterator last);
2913e519524SHoward Hinnant
2923e519524SHoward Hinnanttemplate <class ForwardIterator, class OutputIterator>
293b8bc4e15SArthur O'Dwyer    constexpr OutputIterator       // constexpr in C++20
2943e519524SHoward Hinnant    rotate_copy(ForwardIterator first, ForwardIterator middle, ForwardIterator last, OutputIterator result);
2953e519524SHoward Hinnant
2963e519524SHoward Hinnanttemplate <class RandomAccessIterator>
2973e519524SHoward Hinnant    void
2980f37a410SMarshall Clow    random_shuffle(RandomAccessIterator first, RandomAccessIterator last); // deprecated in C++14, removed in C++17
2993e519524SHoward Hinnant
3003e519524SHoward Hinnanttemplate <class RandomAccessIterator, class RandomNumberGenerator>
3013e519524SHoward Hinnant    void
30206965c1fSMarshall Clow    random_shuffle(RandomAccessIterator first, RandomAccessIterator last,
3030f37a410SMarshall Clow                   RandomNumberGenerator& rand);  // deprecated in C++14, removed in C++17
3043e519524SHoward Hinnant
305e7154709SEric Fiseliertemplate<class PopulationIterator, class SampleIterator,
306e7154709SEric Fiselier         class Distance, class UniformRandomBitGenerator>
307e7154709SEric Fiselier    SampleIterator sample(PopulationIterator first, PopulationIterator last,
308e7154709SEric Fiselier                          SampleIterator out, Distance n,
309e7154709SEric Fiselier                          UniformRandomBitGenerator&& g); // C++17
310e7154709SEric Fiselier
311f9d540b0SHoward Hinnanttemplate<class RandomAccessIterator, class UniformRandomNumberGenerator>
312f9d540b0SHoward Hinnant    void shuffle(RandomAccessIterator first, RandomAccessIterator last,
313fb340102SHoward Hinnant                 UniformRandomNumberGenerator&& g);
314f9d540b0SHoward Hinnant
3153fbd3eafSArthur O'Dwyertemplate<class ForwardIterator>
3163fbd3eafSArthur O'Dwyer  constexpr ForwardIterator
3173fbd3eafSArthur O'Dwyer    shift_left(ForwardIterator first, ForwardIterator last,
3183fbd3eafSArthur O'Dwyer               typename iterator_traits<ForwardIterator>::difference_type n); // C++20
3193fbd3eafSArthur O'Dwyer
3203fbd3eafSArthur O'Dwyertemplate<class ForwardIterator>
3213fbd3eafSArthur O'Dwyer  constexpr ForwardIterator
3223fbd3eafSArthur O'Dwyer    shift_right(ForwardIterator first, ForwardIterator last,
3233fbd3eafSArthur O'Dwyer                typename iterator_traits<ForwardIterator>::difference_type n); // C++20
3243fbd3eafSArthur O'Dwyer
3253e519524SHoward Hinnanttemplate <class InputIterator, class Predicate>
32649c7643cSMarshall Clow    constexpr bool  // constexpr in C++20
3273e519524SHoward Hinnant    is_partitioned(InputIterator first, InputIterator last, Predicate pred);
3283e519524SHoward Hinnant
3293e519524SHoward Hinnanttemplate <class ForwardIterator, class Predicate>
330f851db3dSArthur O'Dwyer    constexpr ForwardIterator  // constexpr in C++20
3313e519524SHoward Hinnant    partition(ForwardIterator first, ForwardIterator last, Predicate pred);
3323e519524SHoward Hinnant
3333e519524SHoward Hinnanttemplate <class InputIterator, class OutputIterator1,
3343e519524SHoward Hinnant          class OutputIterator2, class Predicate>
3351b9a4ffdSMarshall Clow    constexpr pair<OutputIterator1, OutputIterator2>   // constexpr in C++20
3363e519524SHoward Hinnant    partition_copy(InputIterator first, InputIterator last,
3373e519524SHoward Hinnant                   OutputIterator1 out_true, OutputIterator2 out_false,
3383e519524SHoward Hinnant                   Predicate pred);
3393e519524SHoward Hinnant
3403e519524SHoward Hinnanttemplate <class ForwardIterator, class Predicate>
3413e519524SHoward Hinnant    ForwardIterator
3423e519524SHoward Hinnant    stable_partition(ForwardIterator first, ForwardIterator last, Predicate pred);
3433e519524SHoward Hinnant
3443e519524SHoward Hinnanttemplate<class ForwardIterator, class Predicate>
345d57c03ddSMarshall Clow    constexpr ForwardIterator  // constexpr in C++20
3463e519524SHoward Hinnant    partition_point(ForwardIterator first, ForwardIterator last, Predicate pred);
3473e519524SHoward Hinnant
3483e519524SHoward Hinnanttemplate <class ForwardIterator>
34949c7643cSMarshall Clow    constexpr bool  // constexpr in C++20
3503e519524SHoward Hinnant    is_sorted(ForwardIterator first, ForwardIterator last);
3513e519524SHoward Hinnant
3523e519524SHoward Hinnanttemplate <class ForwardIterator, class Compare>
353b8bc4e15SArthur O'Dwyer    constexpr bool  // constexpr in C++20
3543e519524SHoward Hinnant    is_sorted(ForwardIterator first, ForwardIterator last, Compare comp);
3553e519524SHoward Hinnant
3563e519524SHoward Hinnanttemplate<class ForwardIterator>
357056f15e3SMarshall Clow    constexpr ForwardIterator    // constexpr in C++20
3583e519524SHoward Hinnant    is_sorted_until(ForwardIterator first, ForwardIterator last);
3593e519524SHoward Hinnant
3603e519524SHoward Hinnanttemplate <class ForwardIterator, class Compare>
361056f15e3SMarshall Clow    constexpr ForwardIterator    // constexpr in C++20
3623e519524SHoward Hinnant    is_sorted_until(ForwardIterator first, ForwardIterator last, Compare comp);
3633e519524SHoward Hinnant
3643e519524SHoward Hinnanttemplate <class RandomAccessIterator>
365493f1407SArthur O'Dwyer    constexpr void               // constexpr in C++20
3663e519524SHoward Hinnant    sort(RandomAccessIterator first, RandomAccessIterator last);
3673e519524SHoward Hinnant
3683e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
369493f1407SArthur O'Dwyer    constexpr void               // constexpr in C++20
3703e519524SHoward Hinnant    sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
3713e519524SHoward Hinnant
3723e519524SHoward Hinnanttemplate <class RandomAccessIterator>
3733e519524SHoward Hinnant    void
3743e519524SHoward Hinnant    stable_sort(RandomAccessIterator first, RandomAccessIterator last);
3753e519524SHoward Hinnant
3763e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
3773e519524SHoward Hinnant    void
3783e519524SHoward Hinnant    stable_sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
3793e519524SHoward Hinnant
3803e519524SHoward Hinnanttemplate <class RandomAccessIterator>
3815386aa26SArthur O'Dwyer    constexpr void                    // constexpr in C++20
3823e519524SHoward Hinnant    partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last);
3833e519524SHoward Hinnant
3843e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
3855386aa26SArthur O'Dwyer    constexpr void                    // constexpr in C++20
3863e519524SHoward Hinnant    partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last, Compare comp);
3873e519524SHoward Hinnant
3883e519524SHoward Hinnanttemplate <class InputIterator, class RandomAccessIterator>
3895386aa26SArthur O'Dwyer    constexpr RandomAccessIterator    // constexpr in C++20
3903e519524SHoward Hinnant    partial_sort_copy(InputIterator first, InputIterator last,
3913e519524SHoward Hinnant                      RandomAccessIterator result_first, RandomAccessIterator result_last);
3923e519524SHoward Hinnant
3933e519524SHoward Hinnanttemplate <class InputIterator, class RandomAccessIterator, class Compare>
3945386aa26SArthur O'Dwyer    constexpr RandomAccessIterator    // constexpr in C++20
3953e519524SHoward Hinnant    partial_sort_copy(InputIterator first, InputIterator last,
3963e519524SHoward Hinnant                      RandomAccessIterator result_first, RandomAccessIterator result_last, Compare comp);
3973e519524SHoward Hinnant
3983e519524SHoward Hinnanttemplate <class RandomAccessIterator>
3995d956563SArthur O'Dwyer    constexpr void                    // constexpr in C++20
4003e519524SHoward Hinnant    nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last);
4013e519524SHoward Hinnant
4023e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
4035d956563SArthur O'Dwyer    constexpr void                    // constexpr in C++20
4043e519524SHoward Hinnant    nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last, Compare comp);
4053e519524SHoward Hinnant
4063e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
407d57c03ddSMarshall Clow    constexpr ForwardIterator                         // constexpr in C++20
4083e519524SHoward Hinnant    lower_bound(ForwardIterator first, ForwardIterator last, const T& value);
4093e519524SHoward Hinnant
4103e519524SHoward Hinnanttemplate <class ForwardIterator, class T, class Compare>
411d57c03ddSMarshall Clow    constexpr ForwardIterator                         // constexpr in C++20
4123e519524SHoward Hinnant    lower_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
4133e519524SHoward Hinnant
4143e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
415d57c03ddSMarshall Clow    constexpr ForwardIterator                         // constexpr in C++20
4163e519524SHoward Hinnant    upper_bound(ForwardIterator first, ForwardIterator last, const T& value);
4173e519524SHoward Hinnant
4183e519524SHoward Hinnanttemplate <class ForwardIterator, class T, class Compare>
419d57c03ddSMarshall Clow    constexpr ForwardIterator                         // constexpr in C++20
4203e519524SHoward Hinnant    upper_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
4213e519524SHoward Hinnant
4223e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
423d57c03ddSMarshall Clow    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++20
4243e519524SHoward Hinnant    equal_range(ForwardIterator first, ForwardIterator last, const T& value);
4253e519524SHoward Hinnant
4263e519524SHoward Hinnanttemplate <class ForwardIterator, class T, class Compare>
427d57c03ddSMarshall Clow    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++20
4283e519524SHoward Hinnant    equal_range(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
4293e519524SHoward Hinnant
4303e519524SHoward Hinnanttemplate <class ForwardIterator, class T>
431d57c03ddSMarshall Clow    constexpr bool                                    // constexpr in C++20
4323e519524SHoward Hinnant    binary_search(ForwardIterator first, ForwardIterator last, const T& value);
4333e519524SHoward Hinnant
4343e519524SHoward Hinnanttemplate <class ForwardIterator, class T, class Compare>
4358da1a487SMarshall Clow    constexpr bool                                    // constexpr in C++20
4363e519524SHoward Hinnant    binary_search(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
4373e519524SHoward Hinnant
4383e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator>
43914098cf6SArthur O'Dwyer    constexpr OutputIterator                          // constexpr in C++20
4403e519524SHoward Hinnant    merge(InputIterator1 first1, InputIterator1 last1,
4413e519524SHoward Hinnant          InputIterator2 first2, InputIterator2 last2, OutputIterator result);
4423e519524SHoward Hinnant
4433e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
44414098cf6SArthur O'Dwyer    constexpr OutputIterator                          // constexpr in C++20
4453e519524SHoward Hinnant    merge(InputIterator1 first1, InputIterator1 last1,
4463e519524SHoward Hinnant          InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
4473e519524SHoward Hinnant
4483e519524SHoward Hinnanttemplate <class BidirectionalIterator>
4493e519524SHoward Hinnant    void
4503e519524SHoward Hinnant    inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last);
4513e519524SHoward Hinnant
4523e519524SHoward Hinnanttemplate <class BidirectionalIterator, class Compare>
4533e519524SHoward Hinnant    void
4543e519524SHoward Hinnant    inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last, Compare comp);
4553e519524SHoward Hinnant
4563e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2>
4578da1a487SMarshall Clow    constexpr bool                                    // constexpr in C++20
4583e519524SHoward Hinnant    includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
4593e519524SHoward Hinnant
4603e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class Compare>
4618da1a487SMarshall Clow    constexpr bool                                    // constexpr in C++20
4623e519524SHoward Hinnant    includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, Compare comp);
4633e519524SHoward Hinnant
4643e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator>
46514098cf6SArthur O'Dwyer    constexpr OutputIterator                          // constexpr in C++20
4663e519524SHoward Hinnant    set_union(InputIterator1 first1, InputIterator1 last1,
4673e519524SHoward Hinnant              InputIterator2 first2, InputIterator2 last2, OutputIterator result);
4683e519524SHoward Hinnant
4693e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
47014098cf6SArthur O'Dwyer    constexpr OutputIterator                          // constexpr in C++20
4713e519524SHoward Hinnant    set_union(InputIterator1 first1, InputIterator1 last1,
4723e519524SHoward Hinnant              InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
4733e519524SHoward Hinnant
4743e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator>
4758da1a487SMarshall Clow    constexpr OutputIterator                         // constexpr in C++20
4763e519524SHoward Hinnant    set_intersection(InputIterator1 first1, InputIterator1 last1,
4773e519524SHoward Hinnant                     InputIterator2 first2, InputIterator2 last2, OutputIterator result);
4783e519524SHoward Hinnant
4793e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
4808da1a487SMarshall Clow    constexpr OutputIterator                         // constexpr in C++20
4813e519524SHoward Hinnant    set_intersection(InputIterator1 first1, InputIterator1 last1,
4823e519524SHoward Hinnant                     InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
4833e519524SHoward Hinnant
4843e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator>
48514098cf6SArthur O'Dwyer    constexpr OutputIterator                         // constexpr in C++20
4863e519524SHoward Hinnant    set_difference(InputIterator1 first1, InputIterator1 last1,
4873e519524SHoward Hinnant                   InputIterator2 first2, InputIterator2 last2, OutputIterator result);
4883e519524SHoward Hinnant
4893e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
49014098cf6SArthur O'Dwyer    constexpr OutputIterator                         // constexpr in C++20
4913e519524SHoward Hinnant    set_difference(InputIterator1 first1, InputIterator1 last1,
4923e519524SHoward Hinnant                   InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
4933e519524SHoward Hinnant
4943e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator>
49514098cf6SArthur O'Dwyer    constexpr OutputIterator                         // constexpr in C++20
4963e519524SHoward Hinnant    set_symmetric_difference(InputIterator1 first1, InputIterator1 last1,
4973e519524SHoward Hinnant                             InputIterator2 first2, InputIterator2 last2, OutputIterator result);
4983e519524SHoward Hinnant
4993e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
50014098cf6SArthur O'Dwyer    constexpr OutputIterator                         // constexpr in C++20
5013e519524SHoward Hinnant    set_symmetric_difference(InputIterator1 first1, InputIterator1 last1,
5023e519524SHoward Hinnant                             InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
5033e519524SHoward Hinnant
5043e519524SHoward Hinnanttemplate <class RandomAccessIterator>
5055386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5063e519524SHoward Hinnant    push_heap(RandomAccessIterator first, RandomAccessIterator last);
5073e519524SHoward Hinnant
5083e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
5095386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5103e519524SHoward Hinnant    push_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
5113e519524SHoward Hinnant
5123e519524SHoward Hinnanttemplate <class RandomAccessIterator>
5135386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5143e519524SHoward Hinnant    pop_heap(RandomAccessIterator first, RandomAccessIterator last);
5153e519524SHoward Hinnant
5163e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
5175386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5183e519524SHoward Hinnant    pop_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
5193e519524SHoward Hinnant
5203e519524SHoward Hinnanttemplate <class RandomAccessIterator>
5215386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5223e519524SHoward Hinnant    make_heap(RandomAccessIterator first, RandomAccessIterator last);
5233e519524SHoward Hinnant
5243e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
5255386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5263e519524SHoward Hinnant    make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
5273e519524SHoward Hinnant
5283e519524SHoward Hinnanttemplate <class RandomAccessIterator>
5295386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5303e519524SHoward Hinnant    sort_heap(RandomAccessIterator first, RandomAccessIterator last);
5313e519524SHoward Hinnant
5323e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
5335386aa26SArthur O'Dwyer    constexpr void                                   // constexpr in C++20
5343e519524SHoward Hinnant    sort_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
5353e519524SHoward Hinnant
5363e519524SHoward Hinnanttemplate <class RandomAccessIterator>
53749c7643cSMarshall Clow    constexpr bool   // constexpr in C++20
5383e519524SHoward Hinnant    is_heap(RandomAccessIterator first, RandomAccessiterator last);
5393e519524SHoward Hinnant
5403e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
54149c7643cSMarshall Clow    constexpr bool   // constexpr in C++20
5423e519524SHoward Hinnant    is_heap(RandomAccessIterator first, RandomAccessiterator last, Compare comp);
5433e519524SHoward Hinnant
5443e519524SHoward Hinnanttemplate <class RandomAccessIterator>
54549c7643cSMarshall Clow    constexpr RandomAccessIterator   // constexpr in C++20
5463e519524SHoward Hinnant    is_heap_until(RandomAccessIterator first, RandomAccessiterator last);
5473e519524SHoward Hinnant
5483e519524SHoward Hinnanttemplate <class RandomAccessIterator, class Compare>
54949c7643cSMarshall Clow    constexpr RandomAccessIterator   // constexpr in C++20
5503e519524SHoward Hinnant    is_heap_until(RandomAccessIterator first, RandomAccessiterator last, Compare comp);
5513e519524SHoward Hinnant
5524eb27b79SHoward Hinnanttemplate <class ForwardIterator>
553b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator        // constexpr in C++14
554b8bc4e15SArthur O'Dwyer    min_element(ForwardIterator first, ForwardIterator last);
5554eb27b79SHoward Hinnant
5564eb27b79SHoward Hinnanttemplate <class ForwardIterator, class Compare>
557b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator        // constexpr in C++14
558b8bc4e15SArthur O'Dwyer    min_element(ForwardIterator first, ForwardIterator last, Compare comp);
5594eb27b79SHoward Hinnant
5603e519524SHoward Hinnanttemplate <class T>
561b8bc4e15SArthur O'Dwyer    constexpr const T&               // constexpr in C++14
562b8bc4e15SArthur O'Dwyer    min(const T& a, const T& b);
5633e519524SHoward Hinnant
5643e519524SHoward Hinnanttemplate <class T, class Compare>
565b8bc4e15SArthur O'Dwyer    constexpr const T&               // constexpr in C++14
566b8bc4e15SArthur O'Dwyer    min(const T& a, const T& b, Compare comp);
5673e519524SHoward Hinnant
5683e519524SHoward Hinnanttemplate<class T>
569b8bc4e15SArthur O'Dwyer    constexpr T                      // constexpr in C++14
570b8bc4e15SArthur O'Dwyer    min(initializer_list<T> t);
5713e519524SHoward Hinnant
5723e519524SHoward Hinnanttemplate<class T, class Compare>
573b8bc4e15SArthur O'Dwyer    constexpr T                      // constexpr in C++14
574b8bc4e15SArthur O'Dwyer    min(initializer_list<T> t, Compare comp);
5753e519524SHoward Hinnant
576146c14acSMarshall Clowtemplate<class T>
577146c14acSMarshall Clow    constexpr const T& clamp(const T& v, const T& lo, const T& hi);               // C++17
578146c14acSMarshall Clow
579146c14acSMarshall Clowtemplate<class T, class Compare>
580146c14acSMarshall Clow    constexpr const T& clamp(const T& v, const T& lo, const T& hi, Compare comp); // C++17
581146c14acSMarshall Clow
5823e519524SHoward Hinnanttemplate <class ForwardIterator>
583b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator        // constexpr in C++14
584b8bc4e15SArthur O'Dwyer    max_element(ForwardIterator first, ForwardIterator last);
5853e519524SHoward Hinnant
5863e519524SHoward Hinnanttemplate <class ForwardIterator, class Compare>
587b8bc4e15SArthur O'Dwyer    constexpr ForwardIterator        // constexpr in C++14
588b8bc4e15SArthur O'Dwyer    max_element(ForwardIterator first, ForwardIterator last, Compare comp);
5893e519524SHoward Hinnant
5904eb27b79SHoward Hinnanttemplate <class T>
591b8bc4e15SArthur O'Dwyer    constexpr const T&               // constexpr in C++14
592b8bc4e15SArthur O'Dwyer    max(const T& a, const T& b);
5934eb27b79SHoward Hinnant
5944eb27b79SHoward Hinnanttemplate <class T, class Compare>
595b8bc4e15SArthur O'Dwyer    constexpr const T&               // constexpr in C++14
596b8bc4e15SArthur O'Dwyer    max(const T& a, const T& b, Compare comp);
5974eb27b79SHoward Hinnant
5984eb27b79SHoward Hinnanttemplate<class T>
599b8bc4e15SArthur O'Dwyer    constexpr T                      // constexpr in C++14
600b8bc4e15SArthur O'Dwyer    max(initializer_list<T> t);
6014eb27b79SHoward Hinnant
6024eb27b79SHoward Hinnanttemplate<class T, class Compare>
603b8bc4e15SArthur O'Dwyer    constexpr T                      // constexpr in C++14
604b8bc4e15SArthur O'Dwyer    max(initializer_list<T> t, Compare comp);
6054eb27b79SHoward Hinnant
6064eb27b79SHoward Hinnanttemplate<class ForwardIterator>
607b8bc4e15SArthur O'Dwyer    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++14
608b8bc4e15SArthur O'Dwyer    minmax_element(ForwardIterator first, ForwardIterator last);
6094eb27b79SHoward Hinnant
6104eb27b79SHoward Hinnanttemplate<class ForwardIterator, class Compare>
611b8bc4e15SArthur O'Dwyer    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++14
612b8bc4e15SArthur O'Dwyer    minmax_element(ForwardIterator first, ForwardIterator last, Compare comp);
6134eb27b79SHoward Hinnant
6144eb27b79SHoward Hinnanttemplate<class T>
615b8bc4e15SArthur O'Dwyer    constexpr pair<const T&, const T&>  // constexpr in C++14
616b8bc4e15SArthur O'Dwyer    minmax(const T& a, const T& b);
6174eb27b79SHoward Hinnant
6184eb27b79SHoward Hinnanttemplate<class T, class Compare>
619b8bc4e15SArthur O'Dwyer    constexpr pair<const T&, const T&>  // constexpr in C++14
620b8bc4e15SArthur O'Dwyer    minmax(const T& a, const T& b, Compare comp);
6214eb27b79SHoward Hinnant
6224eb27b79SHoward Hinnanttemplate<class T>
623b8bc4e15SArthur O'Dwyer    constexpr pair<T, T>                // constexpr in C++14
624b8bc4e15SArthur O'Dwyer    minmax(initializer_list<T> t);
6254eb27b79SHoward Hinnant
6264eb27b79SHoward Hinnanttemplate<class T, class Compare>
627b8bc4e15SArthur O'Dwyer    constexpr pair<T, T>                // constexpr in C++14
628b8bc4e15SArthur O'Dwyer    minmax(initializer_list<T> t, Compare comp);
6294eb27b79SHoward Hinnant
6303e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2>
6311b9a4ffdSMarshall Clow    constexpr bool     // constexpr in C++20
6323e519524SHoward Hinnant    lexicographical_compare(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
6333e519524SHoward Hinnant
6343e519524SHoward Hinnanttemplate <class InputIterator1, class InputIterator2, class Compare>
6351b9a4ffdSMarshall Clow    constexpr bool     // constexpr in C++20
6363e519524SHoward Hinnant    lexicographical_compare(InputIterator1 first1, InputIterator1 last1,
6373e519524SHoward Hinnant                            InputIterator2 first2, InputIterator2 last2, Compare comp);
6383e519524SHoward Hinnant
6393e519524SHoward Hinnanttemplate <class BidirectionalIterator>
640f851db3dSArthur O'Dwyer    constexpr bool     // constexpr in C++20
6413e519524SHoward Hinnant    next_permutation(BidirectionalIterator first, BidirectionalIterator last);
6423e519524SHoward Hinnant
6433e519524SHoward Hinnanttemplate <class BidirectionalIterator, class Compare>
644f851db3dSArthur O'Dwyer    constexpr bool     // constexpr in C++20
6453e519524SHoward Hinnant    next_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp);
6463e519524SHoward Hinnant
6473e519524SHoward Hinnanttemplate <class BidirectionalIterator>
648f851db3dSArthur O'Dwyer    constexpr bool     // constexpr in C++20
6493e519524SHoward Hinnant    prev_permutation(BidirectionalIterator first, BidirectionalIterator last);
6503e519524SHoward Hinnant
6513e519524SHoward Hinnanttemplate <class BidirectionalIterator, class Compare>
652f851db3dSArthur O'Dwyer    constexpr bool     // constexpr in C++20
6533e519524SHoward Hinnant    prev_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp);
6543e519524SHoward Hinnant
6558d23b742SKonstantin Varlamovnamespace ranges {
6568d23b742SKonstantin Varlamov// [algorithms.results], algorithm result types
6578d23b742SKonstantin Varlamovtemplate<class InputIterator, class OutputIterator>
6588d23b742SKonstantin Varlamov    struct in_out_result;
6598d23b742SKonstantin Varlamov}
6608d23b742SKonstantin Varlamov
6613e519524SHoward Hinnant}  // std
6623e519524SHoward Hinnant
6633e519524SHoward Hinnant*/
6643e519524SHoward Hinnant
665*ea2206d7SArthur O'Dwyer#include <__bits>
6663e519524SHoward Hinnant#include <__config>
667134723edSLouis Dionne#include <__debug>
668a1d07d57SHoward Hinnant#include <cstddef>
669bfbd73f8SArthur O'Dwyer#include <cstring>
670bfbd73f8SArthur O'Dwyer#include <functional>
671bfbd73f8SArthur O'Dwyer#include <initializer_list>
672bfbd73f8SArthur O'Dwyer#include <iterator>
673bfbd73f8SArthur O'Dwyer#include <memory>
674bfbd73f8SArthur O'Dwyer#include <type_traits>
675*ea2206d7SArthur O'Dwyer#include <utility>
676f56972e2SMarshall Clow#include <version>
6775d1a701dSHoward Hinnant
678134723edSLouis Dionne#include <__algorithm/adjacent_find.h>
679134723edSLouis Dionne#include <__algorithm/all_of.h>
680134723edSLouis Dionne#include <__algorithm/any_of.h>
681134723edSLouis Dionne#include <__algorithm/binary_search.h>
682134723edSLouis Dionne#include <__algorithm/clamp.h>
683134723edSLouis Dionne#include <__algorithm/comp.h>
684134723edSLouis Dionne#include <__algorithm/comp_ref_type.h>
685134723edSLouis Dionne#include <__algorithm/copy.h>
686134723edSLouis Dionne#include <__algorithm/copy_backward.h>
687134723edSLouis Dionne#include <__algorithm/copy_if.h>
688134723edSLouis Dionne#include <__algorithm/copy_n.h>
689134723edSLouis Dionne#include <__algorithm/count.h>
690134723edSLouis Dionne#include <__algorithm/count_if.h>
691134723edSLouis Dionne#include <__algorithm/equal.h>
692134723edSLouis Dionne#include <__algorithm/equal_range.h>
693134723edSLouis Dionne#include <__algorithm/fill.h>
6944d81a46fSArthur O'Dwyer#include <__algorithm/fill_n.h>
695134723edSLouis Dionne#include <__algorithm/find.h>
696134723edSLouis Dionne#include <__algorithm/find_end.h>
697134723edSLouis Dionne#include <__algorithm/find_first_of.h>
698134723edSLouis Dionne#include <__algorithm/find_if.h>
699134723edSLouis Dionne#include <__algorithm/find_if_not.h>
700134723edSLouis Dionne#include <__algorithm/for_each.h>
701134723edSLouis Dionne#include <__algorithm/for_each_n.h>
702134723edSLouis Dionne#include <__algorithm/generate.h>
7034d81a46fSArthur O'Dwyer#include <__algorithm/generate_n.h>
704134723edSLouis Dionne#include <__algorithm/half_positive.h>
705f3514af4SNikolas Klauser#include <__algorithm/in_in_out_result.h>
706d3729bb3SNikolas Klauser#include <__algorithm/in_in_result.h>
707610979b3SNikolas Klauser#include <__algorithm/in_out_out_result.h>
7088d23b742SKonstantin Varlamov#include <__algorithm/in_out_result.h>
709134723edSLouis Dionne#include <__algorithm/includes.h>
710134723edSLouis Dionne#include <__algorithm/inplace_merge.h>
711134723edSLouis Dionne#include <__algorithm/is_heap.h>
712134723edSLouis Dionne#include <__algorithm/is_heap_until.h>
713134723edSLouis Dionne#include <__algorithm/is_partitioned.h>
714134723edSLouis Dionne#include <__algorithm/is_permutation.h>
715134723edSLouis Dionne#include <__algorithm/is_sorted.h>
716134723edSLouis Dionne#include <__algorithm/is_sorted_until.h>
7176adbc83eSChristopher Di Bella#include <__algorithm/iter_swap.h>
718134723edSLouis Dionne#include <__algorithm/lexicographical_compare.h>
719134723edSLouis Dionne#include <__algorithm/lower_bound.h>
720134723edSLouis Dionne#include <__algorithm/make_heap.h>
721134723edSLouis Dionne#include <__algorithm/max.h>
722134723edSLouis Dionne#include <__algorithm/max_element.h>
723134723edSLouis Dionne#include <__algorithm/merge.h>
724134723edSLouis Dionne#include <__algorithm/min.h>
725134723edSLouis Dionne#include <__algorithm/min_element.h>
726134723edSLouis Dionne#include <__algorithm/minmax.h>
727134723edSLouis Dionne#include <__algorithm/minmax_element.h>
728134723edSLouis Dionne#include <__algorithm/mismatch.h>
729134723edSLouis Dionne#include <__algorithm/move.h>
730134723edSLouis Dionne#include <__algorithm/move_backward.h>
731134723edSLouis Dionne#include <__algorithm/next_permutation.h>
732134723edSLouis Dionne#include <__algorithm/none_of.h>
733134723edSLouis Dionne#include <__algorithm/nth_element.h>
734134723edSLouis Dionne#include <__algorithm/partial_sort.h>
735134723edSLouis Dionne#include <__algorithm/partial_sort_copy.h>
736134723edSLouis Dionne#include <__algorithm/partition.h>
737134723edSLouis Dionne#include <__algorithm/partition_copy.h>
738134723edSLouis Dionne#include <__algorithm/partition_point.h>
739134723edSLouis Dionne#include <__algorithm/pop_heap.h>
740134723edSLouis Dionne#include <__algorithm/prev_permutation.h>
741134723edSLouis Dionne#include <__algorithm/push_heap.h>
742134723edSLouis Dionne#include <__algorithm/remove.h>
743134723edSLouis Dionne#include <__algorithm/remove_copy.h>
744134723edSLouis Dionne#include <__algorithm/remove_copy_if.h>
745134723edSLouis Dionne#include <__algorithm/remove_if.h>
746134723edSLouis Dionne#include <__algorithm/replace.h>
747134723edSLouis Dionne#include <__algorithm/replace_copy.h>
748134723edSLouis Dionne#include <__algorithm/replace_copy_if.h>
749134723edSLouis Dionne#include <__algorithm/replace_if.h>
750134723edSLouis Dionne#include <__algorithm/reverse.h>
751134723edSLouis Dionne#include <__algorithm/reverse_copy.h>
752134723edSLouis Dionne#include <__algorithm/rotate.h>
753134723edSLouis Dionne#include <__algorithm/rotate_copy.h>
754134723edSLouis Dionne#include <__algorithm/sample.h>
755134723edSLouis Dionne#include <__algorithm/search.h>
756134723edSLouis Dionne#include <__algorithm/search_n.h>
757134723edSLouis Dionne#include <__algorithm/set_difference.h>
758134723edSLouis Dionne#include <__algorithm/set_intersection.h>
759134723edSLouis Dionne#include <__algorithm/set_symmetric_difference.h>
760134723edSLouis Dionne#include <__algorithm/set_union.h>
761134723edSLouis Dionne#include <__algorithm/shift_left.h>
762134723edSLouis Dionne#include <__algorithm/shift_right.h>
763134723edSLouis Dionne#include <__algorithm/shuffle.h>
764134723edSLouis Dionne#include <__algorithm/sift_down.h>
765134723edSLouis Dionne#include <__algorithm/sort.h>
766134723edSLouis Dionne#include <__algorithm/sort_heap.h>
767134723edSLouis Dionne#include <__algorithm/stable_partition.h>
768134723edSLouis Dionne#include <__algorithm/stable_sort.h>
7696adbc83eSChristopher Di Bella#include <__algorithm/swap_ranges.h>
770134723edSLouis Dionne#include <__algorithm/transform.h>
771134723edSLouis Dionne#include <__algorithm/unique.h>
7724d81a46fSArthur O'Dwyer#include <__algorithm/unique_copy.h>
773134723edSLouis Dionne#include <__algorithm/unwrap_iter.h>
774134723edSLouis Dionne#include <__algorithm/upper_bound.h>
775c1bd9197SEric Fiselier
776073458b1SHoward Hinnant#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
7773e519524SHoward Hinnant#  pragma GCC system_header
778073458b1SHoward Hinnant#endif
7793e519524SHoward Hinnant
7800a06eb91SLouis Dionne#if defined(_LIBCPP_HAS_PARALLEL_ALGORITHMS) && _LIBCPP_STD_VER >= 17
78195689243SLouis Dionne#   include <__pstl_algorithm>
7820a06eb91SLouis Dionne#endif
7830a06eb91SLouis Dionne
7843e519524SHoward Hinnant#endif // _LIBCPP_ALGORITHM
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